If you heard serious anti-spammers talk, you may have heard them demand: "Lart that spammer!" Sounds pretty terrifying, and in a way it is.
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LART stands for Luser Attitude Readjustment Tool, with a luser of course being somebody who is at the same time a user and a loser.
In the context of spam, applying LART on a user (a spammer in this case) usually means exercising the ISP's acceptable usage agreement.
Most ISPs do not allow their users to send unsolicited bulk email. Violating that policy usually means discontinuation of service, and that's what larting a user means.
